Opinion on the mechanics for this wacky guy

I got not a clue if this is the place to post this but I stumbled upon this sub and here I am now lmfao. I didn't really take much of it seriously since this guy was a funky lil character I designed for a silly horror haunted house thingy filled with animatronics, but now I'm curious to see how I did with this guy lol. I'm a sucker for animatronics and I'm always down for improvement and learning new things so go feral. Absolutely feel free to let me know if this sub isn't the place to post things like this, but if it is, then I'd appreciate some tips to get different mechanics right! I do have plans on attempting to build some sort of animatronic in the future (not the guy in the images) so I figured I could use this to learn a bit more while I'm at it